Madrigal Audio Mark Levinson 39, Руководство по эксплуатации, Страница: 23 / 56

23
The specifications for this IR input call for a triggering voltage of 5-12 volts
at no more than 100 milliamperes of current, with the tip of the
1 ⁄
8
" mini-
plug having positive polarity, as below:
IR input tip polarity
+ –
3-15 volts @ less
than 100 mA
5-12 volts @ less
than 100 mA
If you would like more information on the possibility of using an infrared
repeater with your Nº39, please contact your Mark Levinson dealer.
7 COMMUNICATION PORTS
These communications ports allow the Nº39 to “link” to certain compatible
Mark Levinson components. (See “
Special Functions
.”)
Linking connections
The Mark Levinson Linking system provides for inter-component communi-
cations. Normally, the digital processor in the system would serve as the
“master” of this communications system, while other components including
the transport would be “slaves” to that master. (The master acts as a central
clearinghouse for that information—sort of like the Post Office, but quite a
bit faster.) Since the Nº39 is
both
a digital transport and a digital processor
in one component, it automatically configures itself as either a master or a
slave, based on the needs of the rest of the system. (Technically, if the Nº39
senses another master on the communications bus, it automatically config-
ures itself as a slave.)
The most common configuration for systems incorporating the Nº39 is illus-
trated at left. The Nº39’s
master out
port normally sits at the beginning of
the chain, and is connected to the
slave
port of a Mark Levinson preampli-
fier using a “straight-through” eight conductor modular cable. The preampli-
fier, in turn, serves as the “master” for the power amplifier(s) with which it
is used. (
See diagram at left for clarification
.)
Alternatively, if you elect to use the variable output feature of the Nº39 to
drive a power amplifier directly, it may serve as the power amplifier’s “mas-
ter” using a special eight-to-six conductor Link cable described below. Us-
ing this cable automatically configures the Nº39 as though it were a Mark
Levinson preamplifier in order to control the Mark Levinson power ampli-
fier. (
See diagram at left for clarification
.)
Finally, if at some point you end up using your Nº39 as a transport in con-
junction with a separate Mark Levinson digital processor, simply insert it
between the processor and the preamplifier
(connecting the processor’s
master port to the Nº39’s slave in port, and the Nº39’s slave out port to the
preamplifier’s slave port)
to keep the daisy chain going. Sensing another
“master” on the communications bus, the Nº39 will automatically configure
itself as a slave to that master (hence the
master/slave out
nomenclature
on the rear panel jack).
(See illustration on next page for clarification.)
analog output
master/
slave out
MADRIGAL AUDIO LABORATORIES
R
polarity
invert
display
intensity
aes/ebu emphasis
1 2 3 4 5 6
standby
COMPACT DISC DRIVE
Nº 37
mode
teach ir
Link
cable
slave in
Nº333
Nº39
MADRIGAL AUDIO LABORATORIES
R
Nº 333
DUAL MONAURAL
POWER AMPLIFIER
analog output
master/
slave out
Link
cable
Nº38
slave any input
MADRIGAL AUDIO LABORATORIES
R
polarity
invert
display
intensity
aes/ebu emphasis
1 2 3 4 5 6
standby
COMPACT DISC DRIVE
Nº 37
mode
teach ir
MADRIGAL AUDIO LABORATORIES
R
standby
PREAMPLIFIER
Nº38
Link
cable
master
slave in
Nº333
Nº39
MADRIGAL AUDIO LABORATORIES
R
Nº 333
DUAL MONAURAL
POWER AMPLIFIER
(or)